The high pressure chamber of the oxygen pressure reducing valve is connected to the steel cylinder, and the low pressure chamber is the gas outlet and leads to the use system. The indication of the high pressure meter is the pressure of the gas stored in the cylinder. The outlet pressure of the low pressure gauge can be controlled by the adjusting screw.
1. When using, first turn on the main switch of the cylinder, and then turn the pressure adjustment screw of the low pressure gauge clockwise to compress the main spring and drive the membrane, spring pad and ejector rod to open the valve. In this way, the imported high-pressure gas enters the low-pressure chamber from the high-pressure chamber through throttling and decompression, and then leads to the working system through the outlet.
2. Rotate the adjusting screw to change the opening height of the valve, thereby adjusting the throughput of high-pressure gas and reaching the required pressure value.
3. All pressure reducing valves are equipped with safety valves. It is a device to protect the pressure reducing valve and make it safe to use, and it is also a signal device for the failure of the pressure reducing valve. If the outlet pressure rises by itself and exceeds a certain allowable value due to damage to the valve pad, valve or other reasons, the safety valve will automatically open to exhaust.